Decoder. plain-English AI glossary

Value Alignment

▲ Rising

Embedding what we care about—fairness, honesty, harm reduction—into the model's behavior.

Think of it like

Like teaching a child your family's principles so they know right from wrong when you're not around.

Example

A hiring model is taught not to discriminate based on gender, even if historical data shows a pattern.

How it actually works

The challenge is that values aren't neutral or universal. What counts as 'honest' or 'fair' varies by culture and context. You can encode rules (don't discriminate on gender), but that's brittle. You can fine-tune on examples of good behavior, but that's expensive and incomplete. The best you can do is be explicit about whose values you're encoding and accept that you'll make tradeoffs.

For product teams

Define your product's values upfront and evaluate models against them, not just accuracy.

For engineers

Use instruction tuning, constitutional AI, and adversarial testing to enforce value-aligned behavior.

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